MOLDED SOUNDPROOFING COMPONENT, AND MANUFACTURING METHOD THEREOF

Title:

MOLDED SOUNDPROOFING COMPONENT, AND MANUFACTURING METHOD THEREOF

Document Type and Number:

Japanese Patent JP2014159160

Kind Code:

A

Abstract:

PROBLEM TO BE SOLVED: To provide a manufacturing method in which a manufacturing cost of a molded soundproofing component is largely reduced.SOLUTION: This method includes the steps of placing a first porous layer 1 not occupying the entire cavity onto a part of a wall of a mold cavity having the shape desired by a soundproofing component, and injecting a foaming polymer composition into the cavity of a mold to form a second open-cell porous layer 3. The two steps of placing a practically airtight intermediate layer 2 onto the first porous layer 1 and of injecting a polymer composition in order to form the second porous layer 3 are carried out simultaneously in a single step of injecting the foaming polymer composition.

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Inventors:

MARCEL VALERIE
GUILLAUME DESHAYES

Application Number:

JP2014071333A

Publication Date:

September 04, 2014

Filing Date:

March 31, 2014

Export Citation:

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Assignee:

FAURECIA AUTOMOTIVE IND

International Classes:

B29C45/14; B29C45/00

Domestic Patent References:

JPS6177085A	1986-04-19
JP2005517983A	2005-06-16
JP2007509816A	2007-04-19
JPS61237630A	1986-10-22
JPH0342237A	1991-02-22

Attorney, Agent or Firm:

Ono Shinjiro
Kobayashi 泰
Koichi Kushida

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